Granted Patent
Utility
US 5,488,413 · App. 08/259,479
CATV telephony system using subsplit band for both directions of transmission
Inventors:
Joseph Marcus Elder, Donald L. Bise, Terry D. Bolinger, Peter G. Ruether
Patented Case
View Patent ↗
Granted: Jan 30, 1996
Filed: Jun 14, 1994
Inventors
Joseph Marcus Elder
Donald L. Bise
Terry D. Bolinger
Peter G. Ruether
Assignee (at issue)
XEL Communications, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.